Large Heat Pumps in Europe - High temperature heat pumps for drying

Transcription

1 DryFiciency Large Heat Pumps in Europe - High temperature heat pumps for drying Grant Agreement No Energy Efficiency Innovation Action H2020-EE

2 The DryFiciency Partners Austrian Institute of Technology, Project Coordinator Bitzer Kühlmaschinenbau GmbH, Germany EPCON Evaporation Technology AS, Norway European Heat Pump Association, Belgium ROTREX AS, Denmark SINTEF ENERGI AS, Norway AGRANA STÄRKE GmbH, Austria Chemours Deutschland GmbH, Germany Fuchs Europe Schmierstoffe GmbH, Germany Mars GmbH, Germany RTDS Association, Austria Wienerberger AG, Austria

3 Motivation to lead the European energy intensive industry to high energy efficiency and a reduction of fossil carbon emissions to foster competitiveness, improve security of energy supply and promote sustainable production in Europe. Copyrght: Agrana By making use of waste heat potentials of industrial drying and dehydration processes, the most energy intensive and wide-spread processes in a number of industrial sectors

4 Motivation Final Energy Consumption, EU-28 (Eurostat, 2014) Transport 33.2% Industry 25.9% Other 0.6% Agriculture and forestry 2.2% Services 13.3% Households 24.8%

5 Motivation Final Energy Consumption, EU-28 (Eurostat, 2014) Transport 33.2% Industry 25.9% Other 0.6% Agriculture and forestry 2.2% Services 13.3% Households 24.8%

6 Motivation 100% Final Energy Consumption in Industry 25% Industrial Drying 85% Convective Drying 99% Without Heat Recovery (Source: Mujumdar, Arnu S., Handbook of Industrial Drying, 2014)

7 Motivation

8 Motivation

9 Motivation 2.5 Energy Consumption for Drying SEE (Specific Energy of Evaporation) in kwh/kg-water % - 95% - 67% - 90% 0 Conventional Conventional (advanced) (Source: Mujumdar, Arnu S., Handbook of Industrial Drying, 2014) Heat Pump Heat Pump (advanced)

10 Key goals of DryFiciency Reduction of specific energy consumption by % for drying/dehydration/evaporation processes, by recovering of waste heat Phase-in of renewable energy sources into thermal processes ideally resulting in CO2-free production Development of cost-efficient high temperature industrial heat pumps for industrial thermal processes with minimum global warming potential (GWP) & minimum negative environmental impact Increasing competitiveness of the European industry Become the leading pioneers by being the first to deliver to market

11 Motivation Manufacturer Refrigerant Max. Temp. ºC Cofely Refrigeration R717, R134a Combitherm R134a, R245fa Friotherm Different GEA Refrigeration R717 Hybrid Energy R717, R718 Johnson Controls R410A, R134a, R245fa KKT Chillers Klima Jentzsch Different KWT/Viessmann Different Mayekawa R717 Ochsner R134a, R407C, Öko1 Oilon Scancool R410A, R134a Star Renewable Heating R717 Thermea R744» 100 Required Temp. ºC 180 (Source: Wolf, S., Chancen und Risiken von Industrie WP, Chillventa, 2014)

12 Technical objective of DryFiciency To elaborate technically and economically viable solutions for upgrading idle waste heat streams to process heat streams at higher temperature levels up to 180 C Key elements of the solution are two advanced high temperature vapour compression heat pumps à a closed loop heat pump for air drying processes up to 160ºC and à an open loop heat pump for steam driven drying processes up to 180ºC

13 Pilot 1: Brick Drying at Wienerberger Exhaust air 19 C 27 C Supply air Drying chamber Burner 418 kw Drying air 19 C Recirculation air 8 C 27 C Supply air = Recirculation air Drying chamber 27 C ) C Hot media cycle 44 C Heat pump 237 kw el Cold media cycle end energy savings (GWh) primary energy savings (GWh) CO2 savings (Mt-CO2/a) cost savings (%/kg-product) Wienerberger Agrana Mars

14 Pilot 2: Starch Drying at Agrana Dry product Flow stream dryer Wet product Exhaust air Hot water (HRC) 158 C Drying air 196 C 732 kw Steam 196 C 8736 kw Dry product Flow stream dryer Wet product Exhaust air HRC Drying air 196 C 732 kw 158 C 196 C 5009 kw Steam 3727 kw Heat pump 241 kw el 109 C 196 C 8736 kw end energy savings (GWh) primary energy savings (GWh) CO2 savings (Mt-CO2/a) cost savings (%/kg-product) Wienerberger Agrana Mars

15 Pilot 3: Pet Food Drying at Mars Wet product C M.C 25% Dry product 8 C M.C 5% Superheated Steam dryer 50 C 1200kW Heater Fan 50 C Excess steam 2 C 1200kW Wet product C M.C 25% Dry product 4 C M.C 5% 650kW sensible 20 C Superheated Steam dryer Fan 20 C Water 1 C 600kW C 2 stage compressor 140 kw el 600kW latent 1 C end energy savings (GWh) primary energy savings (GWh) CO2 savings (Mt-CO2/a) cost savings (%/kg-product) Wienerberger Agrana Mars

16 Summary and next steps Adaption of components (end of 2017) Heat Pump development (beginning of 2018) On site Integration (end of 2018) Demonstration phase ( )

17 Project contacts Dr. Michael Lauermann Research Engineer Energy Department Sustainable Thermal Energy Systems Coordination: Dr. Michael Hartl AIT Austrian Institute of Technology GmbH Giefinggasse Vienna Austria T M michael.lauermann@ait.ac.at